## Before we Use
### Installing Terminal APP
We choose **Termux** as the Terminal APP as it is the powerful Linux simulator.
1. Dowloading
From both [GitHub](https://github.com/termux/termux-app/releases) or [F-Droid](https://f-droid.org/en/packages/com.termux/) to download is OK.
2. Installing
*APK* file is easy to install and you must know it without my instruments, you can see something like below after opening this app.
3. Finish
OK, congratulations for ok installing *Termux*.
### Installing Runtime Environment
1. Installing **Python**
```bash
apt-get install python3
```
The picture left below is while you may enter `Y` to continue.
Aftering succeed in installing you will see as right bicture below.
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